Generation of randomized passwords for one-time usage

ABSTRACT

An electronic device dynamically generates a password for one-time only usage. The one-time password is constructed by placing, in a random sequential order: (i) several randomly chosen digits and (ii) several digits, which are randomly selected from personal identification numbers, which were previously provided by an authorized user. The current user of the device is presented with a natural-language password hint, which describes the sequence of digits in the password. Only the authorized user knows the personal identification numbers; and so is able to construct, on-the-fly, the one-time password, and present that password to the device. The password hint may be presented aloud, in audio form, and the password may be entered into the device via speech. If someone nearby hears the hint and/or the password, they cannot use it at a later time to gain device control or data access, since the password is only valid the one time.

FIELD OF THE INVENTION

The present invention relates to the field of password protection for electronic systems. The present invention relates more specifically to secure audio password protection for portable electronic systems, employing randomized elements, which include digits identifiable only by an authorized user.

BACKGROUND

Generally speaking, many electronic devices, and specifically information processing devices, provide access to data that is meant for limited audiences. Various means may be employed to ensure that the private, secure data is accessible only to specified persons or authorized persons.

One known means for controlled access is password protection. With password protection, an authorized person either supplies a unique password or is assigned a unique password (e.g., by a system administrator). The password is typically a specific sequence of characters, that is, letters, numbers, punctuation, and other keyboard symbols. In order to access the secure data, an authorized user must first enter the appropriate password. In some cases, password access is required specifically before accessing the secure data. In other systems, password access may be required to initialize an entire, custom software package that is used to access the secure data. In still other cases, password access may be required to access a network or network server, which stores the secure data.

In general, for password access control to be effective, the password should be known only to those persons who are allowed access to the secure data. If the password becomes known to persons other than the authorized user(s) of the data, then those other persons, who are unauthorized, may be able to obtain access to the data as well.

Passwords are often entered via a keyboard, which typically allows some degree of privacy. Consider an authorized user entering a password via a keyboard and display screen (or a touch screen display). Even if unauthorized persons are present in the room, and are in general proximity to the keyboard, a display screen will typically show masking characters (such as asterisks (“*****”)) in place of the password characters. This prevents the nearby-unauthorized person from reading the password on the display screen. Also, the authorized user who is typing a password may employ various precautions to ensure that other, nearby persons do not see the keyboard as the password is being typed. In many cases, simply the rapid motion of human fingers while typing prevents a nearby person from being able to ascertain the password sequence.

However, it is increasingly common for electronic devices to be voice controlled and voice activated. An example is the VOCOLLECT™ VOICE INSPECTION™ system, which is used for data input and data output in hands-busy, eyes-busy environments (e.g., factories, warehouses, and repair shops). Such a system enables the user to control the electronic device, and to access and modify data, using voice commands. The system may also provide information via audio means, such as a simulated voice.

With such voice-actuated systems, a problem arises regarding password protection. To be truly hands free, and totally voice-driven, an authorized user may need to provide a password in the form of an audio command. For example, the authorized user may be prompted for the password, and then the authorized user recites each element of the password aloud. (The device can then process the password to determine if it is correct, and then provide suitable data access.)

If a password is provided by speech, that is, via words spoken aloud by the authorized user, then any unauthorized persons in nearby proximity may be able to hear the password. The unauthorized persons would then know the password, and so may be able to have unauthorized access to the secure data.

Therefore, a need exists for a system and method for secure password entry where the password is spoken aloud. One means might be for the authorized user, or a system administrator, to create a new, unique password at frequent time intervals. However, such a system would present significant inconveniences and impracticalities both for the authorized user and system administrator.

Therefore, more specifically, a need exists for a convenient system to automatically create one-time passwords for each password entry. Such a system must also be able to convey the password to the authorized user, preferably by audio means, in a way that still maintains the security of each one-time, unique password.

With such a system, a password which is spoken aloud once—and which may be heard by unauthorized users—is only useful that one time, and so cannot be used on a later occasion by an unauthorized user. To be effective, such a one-time, unique password system must be convenient for the authorized users.

SUMMARY

Accordingly, in one aspect, the present invention embraces an information processing system which includes a microprocessor (or simply “processor”), memory associated with the processor, an element for audio communication of data to a person (for example, a speaker or headphones), and an element to receive data from a person via audio communications (for example, a microphone). The system may also include a display screen, a keyboard, and wired or wireless communications elements, for example BLUETOOTH™ or Wi-Fi communications subsystems.

In an exemplary embodiment, the system is configured to obtain, from an authorized user, one or more strings of personal numbers that are well-known to the authorized user. Such strings might be a date of birth, a social security number, a home zip code, or similar. On an as-needed basis, the system constructs a one-time password by randomly selecting digits from the personal numbers, and combining those with other random digits. The system prompts the user for the password, in the form of a description of the unique password. The user can then enter the password via voice reception (that is, speaking the one-time password into a microphone).

In another exemplary embodiment, the system may be configured to obtain one or more alphabetic, or combined alphanumeric strings, which are personal to the authorized user and well-known to the authorized user. Such strings might include a full street address, first names of family members, or similar.

The system constructs a one-time password by randomly selecting letters and/or digits from the personal data, and combines those with other random letters and/or digits. The system prompts the user for the password, in the form of a description of the unique password. The user can then enter the password via voice reception (that is, speaking the unique, one-time password into a microphone).

In yet another exemplary embodiment, the system may interact with the authorized user via visual and tactile interfaces, such as a display screen or keyboard. For example, the password hints may be presented on a display, and the user may enter the one-time password via the keyboard. A mouse or other data entry means may be employed as well.

The foregoing illustrative summary, as well as other exemplary objectives and/or advantages of the system and method, and the manner in which the same are accomplished, are further explained within the following detailed description and its accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 schematically depicts a system diagram of an exemplary electronic device according to the present system and method.

FIG. 2 graphically depicts an exemplary method for an authorized user to enter, into an electronic device, one or more personal data character strings (PDCSs) for use in generating a one-time password.

FIG. 3 is a flow chart of an exemplary method for generating a one-time password and a corresponding password hint or prompt.

FIG. 4 illustrates two specific examples, according to an exemplary method, of generating a one-time password and a corresponding password hint or prompt.

DETAILED DESCRIPTION

In this document, the terms “pass code” and “password” are used synonymously and interchangeably.

While not employed elsewhere in this document, other terms such as “pin”, “confirmation number” and “security code” are often used to describe some pass codes (particularly brief pass codes, such as four-digit codes). For present purposes, such “pins”, “confirmation numbers”, “security codes”, or similar private control numbers, or sequences of symbols for secure data access, are essentially synonymous with “password” or “pass code”, and fall within the scope of the present system and method.

In this document, the words or phrases “pass code hint”, “password hint”, “pass code prompt”, “password prompt”, or simply “hint” or “prompt”, are used synonymously and interchangeably.

In this document, the term “characters” refers to any of digits, alphabetic symbols, punctuation, and/or other keyboard characters such as are typically used in passwords.

While all the examples in this document are of passwords and password characters in English, this is for convenience only. Many other languages, with their respective alphabets and symbols, may be employed to create one-time passwords within the scope of the present system and method.

This document makes reference to a “one-time password,” “unique password,” or “unique, one-time password.” Persons skilled in the art will appreciate that a password, generated according to the present system and method, may not be unique or “one-time” for all time. A password system will typically have a limited number of characters, e.g., no more than four (4) characters or no more than ten (10) characters, etc. Such a limited sequence of characters, drawn from a finite library of available characters (e.g., the symbols on a standard English keyboard), has a finite number of possible combinations. If enough passwords are generated, randomly or otherwise, then repeat (duplicate) passwords will eventually appear.

It will be understood then that a “unique password” or “one-time password” refers to a password, which is only used once before another password is generated; and further, to a password, which is reasonably likely to be distinctive, or unique compared to the previously used password and compared to the next password likely to be generated. In an embodiment of the present system and method, several dozen one-time passwords, or even several hundred passwords, may be generated successively over time, with a reasonable likelihood that all such passwords will be distinct from each other.

FIG. 1.

Referring now to FIG. 1, the present system and method embraces electronic devices (100) which may be mobile (e.g., cellular phones, smart phones, tablet devices, personal digital assistants, portable computers, vehicle-mount computers), stationary (e.g., desktop computers), or distributed (e.g., network systems) having an improved method for password protection for user access. The present system and method has applicability to devices which employ audio user interfaces (120, 125) for input and output (typically a microphone and speakers or headsets); and also has applicability for systems employing visual and/or motion driven user interfaces (e.g., a display monitor and/or keyboard, mouse, etc.) (not shown in the figure).

In an embodiment, an electronic device (100) according to the present disclosure includes a processor (105), memory (110), and user audio interfaces elements (120, 125) as described immediately above, e.g., a microphone (125), and a speaker or headset (120). In an alternative embodiment, an electronic device according to the present disclosure may include a display monitor, a keyboard, a touch-screen display, a holographic interface, and/or a mouse, touch-pad, and/or other means (not illustrated in the figure) for purposes of user interface and interaction.

The electronic device may also include a wireless communication system (115). The processor (105) is communicatively coupled to the memory (110), and the user interface (120, 125), and the wireless communication system (115).

It will be understood by persons skilled in the art that the memory (110) shown in FIG. 1 is schematic only, and may represent one type of memory element, or multiple types of memory elements (as discussed further below) which are employed in the electronic device (100).

The exemplary electronic device (100) may include a system bus (150) and/or one or more internal interface circuits (not shown) for communicatively coupling the processor (105) and other components (memory (110), wireless communications system 115), and user interface (120, 125) to each other.

Various embodiments of system bus architecture, well known in the art or to be developed, may provide for efficient data transfer and/or communication between the components (105, 110, 115, 120, 125) of the device (100) and may be employed in exemplary embodiments in accordance with the present disclosure.

Typically, the processor (105) is configured to execute instructions and to carry out operations associated with the electronic device (100). For example, using instructions retrieved from the memory (110) (e.g., a memory block), the processor (105) may control the reception and manipulation of input and output data between internal components of the electronic device (100). The processor (105) typically operates with an operating system to execute computer code and produce/use data. The operating system, other computer code, and data may reside within the memory (110) that is operatively coupled to the processor (105).

The memory (110) generally provides a place to store computer code and data that are used by the electronic device 10. The memory 12 may include Read-Only Memory (ROM), Random-Access Memory (RAM), a hard disk drive, and/or other non-transitory storage media.

The operating system, other computer code, and data may reside on volatile memory (110) which is permanently built into the electronic device (100) or installed in a slot on the device (100); or on one or more removable, non-transitory storage medium that is loaded or installed onto the electronic device (100) when needed. Exemplary removable non-transitory storage media include CD ROM, PC-CARD, memory card, flash drives, floppy disks, and/or magnetic tape, and/or such other data and code storage media as may be developed in the future.

The operating system, other computer code, and data may also be hard-coded into the electronic device (100) either as dedicated logic within the processor (105) or as non-volatile memory known as firmware (110).

In an embodiment, the instructions and data employed by the electronic device may be organized into one or more modules (130, 135, 140, 145). Such modules may be implemented, in whole or in part, as one or more of dedicated logic in the processor (105); firmware (110); dedicated, specialized processors (represented or subsumed in FIG. 1 by the processor (105)); and/or volatile memory (110).

Exemplary modules which may be employed include:

a text-to-speech module (TTS) (130), which converts textual data and textual output into spoken (voice) language to be output via the speakers (120);

a voice recognition module (VRM) (135), which converts speech received via the microphone (125) into text or other forms of data subject to logical processing by the electronic device (100);

a random number generator (RndNmG) (140) which generates random numbers (or pseudo-random numbers); and

a password system (PWSys) (145) which may generate and/or process passwords according to the present system and method, as described further below in this document.

It will be understood by persons skilled in the relevant arts that the random number generator (140) may employ any of several random number generation algorithms and methods well known in the art, or may employ new or novel methods yet to be developed. Both physical and algorithmic methods of random number generation may be employed, consistent with the present system and method.

As noted, the electronic device (100) typically includes a wireless communication system (115). The wireless communication system (115) enables the electronic device (100) to communicate with a wireless network, such as a cellular network (e.g., a GSM network, a CDMA network, or an LIE network), a local area network (LAN), and/or an ad hoc network.

The electronic device (100) may also include one or more wired communications systems (not illustrated) such as Ethernet ports or USB ports.

FIG. 2.

Referring now to FIG. 2, the present system, and method embraces data reception methods, which are operable on an electronic device (100), such as the exemplary electronic device discussed above in relation to FIG. 1. FIG. 2 illustrates, both in a flow chart and via illustration of a specific example, an exemplary method for an electronic device (100) to obtain and store personal data character strings.

A “personal data character string” (PDCS) (290), as defined herein, is any series of numbers, alphabetic characters (including characters in languages other than English), or other character symbols which is used for personal identification, or is otherwise distinctively associated with an individual person (or in some cases, as with a home address, may be distinctively associated with a small number of people). In an embodiment, a personal data character string is always multiple characters, and may be required to have a minimum length (for example, at least four characters). In an alternative embodiment, some personal character data strings may be allowed to be just a single character in length.

Typical examples of personal data character strings (PDCSs) (290) are home addresses, zip codes, phone numbers, social security numbers (SSNs), dates of birth, e-mail addresses, or even credit card numbers, the year of graduation from college, the year of marriage, or similar. A PDCS (290) may also be first or last names of a family member, a family member birth date, and other such data that a person knows and the person is familiar with by way of distinctive personal associations. A PDSC (290) may also be a character string based on personal preferences or likes, for example, the name of a favorite flavor of ice cream, the name of a favorite movie star, the jersey number (shirt number, uniform number) of a favorite athlete, or similar.

A PDCS (290) may be “distinctive”, in some cases, by being completely unique to the particular person. Examples of such unique personal data character strings (290) include social security numbers and cell phone numbers.

In other cases, the “distinctiveness” of a PDCS lies in the fact that, while not being unique to a person, there are many different plausible or conceivable values for the string; and further, in that it is difficult or unlikely for most other persons to know the particular value of the PDCS (290) for the authorized user. Examples of such non-unique but distinctive PDCSs (290) include birth dates, street address numbers, zip codes, places of birth, first names of family members, and similar data values. For example, dates of birth may have any of 366 different values; but any one user has only one birth date of the 366 possible values, and that date is generally unknown to most other persons.

In an embodiment of the present system and method, PDCSs (290) may be limited to only those strings of data, which are totally numerical, for example, phone numbers, zip codes, social security numbers, and dates of birth. In an alternative embodiment, PDCSs (290) may be strictly alphabetic, for example, the street name of a person's home address, or the name of a city where a person grew up or went to college. In an alternative embodiment, a PDCS (290) may have both numeric and alphabetic characters.

An exemplary method (200) for an electronic system to collect and store one or more PDCSs is presented in FIG. 2. The method is also illustrated in a parallel storyboard (260).

In step 205 of method 200, the device prompts the user for a specific PDCS (290), such as a social security number, date of birth, or similar. The prompt may be presented as an audio prompt (262) or as a text prompt on a display screen (not shown), for example, as part of a dialog box. Panel 265 of storyboard 260 illustrates the electronic device (100) presenting, to a user, an audio prompt (262) (via speaker (120)) for a specific data category (285) of PDCS, for example the person's zip code.

In step 210 of method 200, the device receives, from the user, a personal data character string (290) which is specific to the personal data category (285) presented in the prompt (262) of step 205. The user may enter the data via a keyboard (not shown) or a touch screen display (not shown), or other data entry means provided for by the electronic device (100). Panel 270 of storyboard 260 illustrates the user entering the zip code by means of speaking the zip code aloud. The speech is detected by the microphone (125) of the electronic device (100). The detected speech may then be translated into text symbols by means of the Voice Recognition Module (135).

In an embodiment of the present system and method, the above steps 205 and 210 may be repeated as necessary to obtain multiple different personal data strings (290) from the user, which are stored as multiple respective personal data records (295), discussed immediately below.

In step 215 of method 200, the device stores one or more personal data records (295) for the user. A personal data record (295) pairs, or associates, a personal data category (285) (such as “zip code” or “phone number”) with a specific personal data character string (290).

The personal data records (295) may be stored in a long-term or non-volatile memory (110), for retrieval on multiple future occasions. Panel 275 of storyboard 260 illustrates multiple personal data records (295) which are stored for a particular user, for example, the user's zip code, phone number, social security number, and date of birth.

In an embodiment, each personal data record (295) is stored with two component parts: the numeric string, text string or generally a personal data character string (PDCS) (290) of the personal data record; and an associated description or data category (285) (e.g., “zip code”, “phone number”, etc.). The description or data category (285) may aid the device (100) in later creating a prompt (262) for the PDCS (290). The PDCSs may be stored in a variety of different data structures well known in the art, including databases, databases tables (280), array structures, linked lists, or similar.

FIG. 3.

Referring now to FIG. 3, the present system and method embraces password formation methods that are operable on an electronic device (100), such as the exemplary electronic device discussed above in relation to FIG. 1. FIG. 3 illustrates, in a flow chart, an exemplary method (300) for an electronic device (100) to create a unique, one-time password (405 [see FIG. 4]) based in part on the personal data records (295) created by method 200, or by similar methods.

It is noted here that FIG. 4, discussed below in this document, provides two specific illustrations of the application of method (300) discussed here.

In step 305 of method 300, the device randomly selects one or more specific personal data records (295) from among the personal data records (295) created and stored in method (200). For example, in a specific application of the method to generate a single one-time password—and from among such personal data categories (285) as SSN, date of birth, home phone number, and cell phone number—the method 300 may randomly select to use the category of home phone number.

In step 310, and for any one particular, selected personal data record (295), the method 300 randomly selects one or more individual characters (420 [see FIG. 4]) from the PDCS (290) of the selected record (295). In an embodiment, the number of characters (420) selected from one PDCS (290) may be one or two characters (420), or possibly several characters (420); but generally the characters selected are a subset of the characters in the PDCS (290).

In an alternative embodiment, all the characters (420) in a PDCS (290) may be selected. However, when combined into a password (405) (as described below), the selected characters (420) are typically not presented in the same sequential order as they are stored in the PDCS (290); they may be mixed in with additional characters as well.

For example, in step 310 the method 300 may randomly select the second character and the fourth character of the home phone number. (These characters may be, for example, “0” and “8”.)

In step 315, and for each digit (420) selected from the PDCSs (290) of each selected data record (295), the method 300 generates a respective suitable text or verbal prompt. In an embodiment, the prompts will incorporate part or all of the text stored in the data category component (285) of each data record (295). In an embodiment, the prompt will also include the ordinal placement of the selected digit (420) in the PDCS (290). For example, in step 315 the method 300 may generate the descriptions: “the second character of your home phone number” and “the fourth character of your home phone number.”

A person skilled in the art will appreciate that a prompt may be generated in any language suitable for the given user; examples given here in English are for convenience only.

In step 320, the method 300 first determines the length of the pass code. The length of the pass code may be defined in any number of ways including for example and without limitation: by hard-coding in the computer code of the method; or via a length parameter on a configuration screen (whereby the length may be varied at the discretion of the user or the system administrator); and/or via a length parameter stored in a configuration database; or by other means. In an embodiment, a pass code may have a range of allowed lengths, for example no less than four characters and no more than ten; in such an embodiment, the length for a given, particular instance of a pass code may be randomly determined, or determined by contextual (e.g., device usage) parameters.

The method then ascertains how many additional characters are required to achieve the necessary length of the pass code; in an embodiment, this is determined by the required length of the pass code, minus the number of characters selected in steps 305 and 310. For example, the required pass code length may be five characters, and two characters (420) (selected from personal data characters strings (290)) may have been previously selected; the required additional number of characters is then: 5−2=3.

In step 320, the method 300 then generates the required number of additional characters (415, see FIG. 4). In an embodiment, each character is itself generated at random; for example “2”, “7”, and “5”.

In step 325, the method 300 generates a suitable text (or verbal) prompt for each random digit (415) generated in step 320, for example: “the number 7” or “the digit 7”, and similarly for other digits.

In step 330, the method 300 creates the one-time password (405). In an embodiment, the one-time password (405) is generated by ordering (i) the individual PDCS characters (420) selected from the personal data records (295), and (ii) the additional random digits (415), in a random sequential order.

For example, the digits presented above could be ordered as: “2 7 0 8 5”, “5 8 7 2 0”, “5 7 2 0 8”, or (in this case, for five unique digits) any of 117 other possible random orderings.

In step 335, method 300 generates the pass code prompt (262). In an embodiment, this may be done by taking the individual prompts associated with individual characters (as per steps 315 and 325), and ordering them in the same sequential order as the respective digits (420) are ordered in the one-time pass code (405). For example, and using the exemplary digits described above, if the pass code is “5 8 7 2 0”, then the prompt may be:

“The digit five, the fourth character of your home phone number, the digit seven, the digit two, the second character of your home phone number.”

In an embodiment, a natural language module of the device (100) may insert additional text/words, or change text/words, in order to create a more effective user prompt. For example, the above prompt may be modified with additional text (underlined, below) as:

“To enter your pass code, please speak aloud the digit five, then speak the fourth character of your home phone number, then the digit seven, then the digit two, and finally speak the second character of your home phone number.”

In an embodiment, other means may be employed to enhance the user-friendliness of the prompt (262). For example, when the user is prompted to speak a selected character (420) from a personal data record (295), the method may be modified to add a pause of a few seconds; this would give the user a few moments to mentally recollect the necessary PDCS (290), and to select the appropriate character (420) in their mind.

Persons skilled in the relevant arts will recognize that the method 300 is exemplary only, and other similar or related methods may be employed within the scope and spirit of the present system and method. For example, the steps of method 300 need not be performed in the order shown; other orderings of the steps are possible while yielding the same one-time pass code (405). Some steps may be consolidated into a single step (for example, generation of the pass code hint 315, 325, 335).

Alternative or additional steps may be employed as well within the scope and spirit of the present system and method. For example, instead of selecting personal data records (295) or specific characters (420) within the data elements on a purely random basis, a predetermined selection ordering system may be used. Such a system would still be hidden and essentially unpredictable from the standpoint of persons listening to the pass code prompt; and hence still substantially maintain a robust security level of the present system and method. Other variations are possible as well.

FIG. 4.

FIG. 4 illustrates the composition of two exemplary, different one-time pass codes, both based on the same PDCSs (290) for a single authorized user. In an embodiment, one of these pass codes (405) might be generated on a first occasion when the electronic device requests a pass code; while the second pass code might be generated on a later, subsequent occasion. The fact that the pass codes (405) are highly likely to be different from each other, from one occasion to the next, is an element of the high level of password security offered by the present system and method.

Both pass codes employ the same stored personal data records (295) for: the authorized user's zip code, phone number, date of birth (in mmddyyyy format), and social security number (SSN). The values (290) of these personal data elements, for the particular authorized user, are “10732”, “2125554567”, “04121982”, and “145982904”.

In the first example (400), the first pass code is created, according to an embodiment of the present system and method, by the random selection of individual PDCS characters (420)—here, the 4^(th) digit of the zip code [value=3], the 6^(th) digit of the date of birth [value=9], and two randomly generated digits (405) [values=6, 1].

In an embodiment, the number of digits which are to be selected from the PDCSs may itself be randomly determined. In an embodiment, the present system and method may establish a minimum number of required digits to be selected from a PDCS (290). For example, it may be required that a pass code (405) include at least two characters (digits, in this case) from at least two different personal data records (295).

Here, the values used to form the pass code (405) are 3, 9, 6, and 1. In an embodiment, the order of the randomly selected digits (415, 420) may also be randomly determined. In an alternative embodiment, other fixed ordering schemes, or context or usage dependent ordering schemes, may be employed.

Here, the digits have been randomly ordered to result in a pass code (405) of “6 3 1 9”. The corresponding pass code prompt (262) reads: “Speak 6, then the 4th digit of your zip code, then 1, then the 6th digit of your date of birth.”

In the second example (460), the second pass code is created, according to an embodiment of the present system and method, by the random selection of individual personal data element characters (420)—here, the 1^(st) digit of the zip code [value=1], the 7^(th) digit of the phone number [value=4], and the 7^(th) digit of the social security number [value=9]; along with a randomly generated digit (415) [value=5].

Here, the values used to form the pass code (405) are 1, 4, 9, and 5. Here, the digits have been randomly ordered to result in a pass code (405) of “1 9 5 4”. The corresponding pass code prompt (262) is: “Speak the first digit of your zip code, then the 7th digit of your social security number, then the number 5, and then the 7th digit of your phone number.”

Additional Embodiments

In an embodiment, after creating the one-time unique password (405), the electronic device (100) presents the matching password prompt (262) to the user; the device (100) then receives from the user a reply (which is generally intended by the user to be the correct password, as they have understood from the prompt); and the electronic device (100) then determines if the pass code supplied by the user matches the expected one-time pass code (405) created and stored internally by the device, using the methods above.

If the pass code offered by the user matches the expected pass code (405), then the electronic device (100) grants to the user appropriate data access, appropriate device control, appropriate network access, or other suitable control, access, or privileges (for example, unlocking and providing access to a locked box or locked room).

In an alternative embodiment, the electronic device (100) may store the one-time pass code (405), or multiple one-time pass codes, for later possible use.

In an alternative embodiment, a first electronic device may not present the pass code hint directly to the user; instead, the first electronic device may use the methods above to generate the one-time pass code (405), and the matching pass code hint (262), for use by a second electronic device. The first electronic device would transmit the one-time pass code (405) and matching prompt (262) to the second electronic device (preferably the transmission would be done via secure means).

The second electronic device would then prompt the user, receive the user response, and perform comparison and access functions as appropriate.

In an alternative embodiment, the pass code (405) is generated as a result of a mathematical combination of, or mathematical function of or operation on, the selected digits (420) of the PDCSs (290), along with (optionally) additional digits.

For example, the processor may select one or more digits (420) from the personal data records (295), and then may present to the user a natural language prompt (262) for these digits (as already described above). The natural language prompt (262) may then further instruct the user to add the values, to multiply the values, or to perform some more advanced mathematical operation with the values. The result of the addition or multiplication, or other operation, may then be the one-time password (405).

For example, a prompt (262) may indicate:

“Identify the second digit of your social security number, and the third digit of your cell phone number. Multiply these two values. Add the last digit of your social security number. Please recite the resulting value.”

Suppose the associated digits for this prompt, and for a particular authorized user, are 4, 2, and 9; then the appropriate password calculation would be (4*2)+9; the one-time password would be the result of this calculation, or “17”.

To supplement the present disclosure, this application incorporates entirely by reference the following commonly assigned patents, patent application publications, and patent applications:

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In the specification and/or figures, typical embodiments of the invention have been disclosed. The present invention is not limited to such exemplary embodiments. The use of the term “and/or” includes any and all combinations of one or more of the associated listed items. The figures are schematic representations and so are not necessarily drawn to scale. Unless otherwise noted, specific terms have been used in a generic and descriptive sense and not for purposes of limitation. 

What is claimed is:
 1. An electronic device configured for password protection, said electronic device comprising: a processor; and a memory communicatively coupled to the processor; wherein: said memory is configured to store a personal data character string (PDCS), wherein the characters of the PDCS represent a personal data associated with an authorized user of the electronic device; and said processor is configured to: select one or more characters of the PDCS; and generate a password comprising a combination of the one or more selected characters of the PDCS.
 2. The electronic device of claim 1, wherein the processor is further configured to randomly select the one or more characters of the PDCS.
 3. The electronic device of claim 1, wherein the processor is further configured to generate the password by combining the one or more selected characters of the PDCS in a random sequential order.
 4. The electronic device of claim 1, wherein the processor is further configured to: generate one or more additional characters; and generate the password as a combination of: the one or more selected characters of the PDCS; and the one or more additional characters.
 5. The electronic device of claim 1 further comprising a user interface which is communicatively coupled to the processor, wherein said user interface is configured to: present a data prompt comprising a data category of said PDCS; and to receive a data value responsive to the data prompt, wherein: said received data value is stored in the memory as the PDCS associated with the data category.
 6. The electronic device of claim 5, wherein said user interface comprises at least one of: an audio user interface; and a voice reception interface.
 7. The electronic device of claim 5, wherein the data prompt comprises a data category for a data value which is distinctively associated with the authorized user.
 8. The electronic device of claim 7, wherein the generated password consists of one or more digits selected from among a plurality of digits of the stored PDCS.
 9. The electronic device of claim 1, wherein the processor is further configured to generate a description of said generated password, said description comprising: (a) a data category of the personal data of the PDCS; (b) an ordinal placement of the one or more selected characters within the PDCS; (c) a description of any additional characters of said generated password; and (d) a description of an ordering, within the generated password, of the selected characters referred to by (a) and (b), and the additional characters of (c).
 10. A computer-readable, non-transitory storage medium storing instructions that, when executed by a processor of an electronic device, causes the processor to execute a method for password access, the method comprising: storing in a memory of the electronic device a personal data character string (PDCS), wherein the characters of the PDCS represent a personal data associated with an authorized user of the electronic device; and selecting, via the processor, one or more characters of the PDCS; and generating, via the processor, a password formed by a combination of the one or more selected characters of the PDCS.
 11. The computer-readable, non-transitory storage medium of claim 10, wherein the method further comprises randomly selecting the one or more characters of the PDCS.
 12. The computer-readable, non-transitory storage medium of claim 10, wherein the method further comprises generating the password by combining the one or more selected characters of the PDCS in a random sequential order.
 13. The computer-readable, non-transitory storage medium of claim 10, wherein the method further comprises: generating via the processor one or more additional characters; and generating via the processor the password as a combination of: the one or more selected characters of the PDCS; and the one or more additional characters.
 14. The computer-readable, non-transitory storage medium of claim 10, wherein the method further comprises: presenting, via a user interface of the electronic device, a data prompt comprising a data category of said PDCS; and receiving, via the user interface of the electronic device, a data value responsive to the data prompt, wherein: said received data value is stored in the memory as the PDCS associated with the data category.
 15. The computer-readable, non-transitory storage medium of claim 14, wherein the data prompt comprises a data category for a data value which is distinctively associated with the authorized user.
 16. The computer-readable, non-transitory storage medium of claim 10, wherein the generated password consists of one or more digits selected from among a plurality of digits of the stored PDCS.
 17. The computer-readable, non-transitory storage medium of claim 10, wherein the method further comprises generating a description of said generated password, said description comprising: (a) a data category of the personal data of the PDCS; (b) an ordinal placement of the one or more selected characters within the PDCS; (c) a description of any additional characters of said generated password; and (d) a description of an ordering, within the generated password, of: the selected characters referred to by (a) and (b), and the additional characters of (c).
 18. In an electronic device comprising a processor and a memory which is communicatively coupled to said processor, a method for password access, the method comprising: storing in the memory of the electronic device a personal data character string (PDCS), wherein the characters of the PDCS represent a personal data associated with an authorized user; and selecting, via the processor, one or more characters of the PDCS; and generating, via the processor, a password formed by a combination of the one or more selected characters of the PDCS.
 19. The method of claim 18, further comprising randomly selecting the one or more characters of the PDCS.
 20. The method of claim 18, further comprising generating the password by combining the one or more selected characters of the PDCS in a sequential order which is randomly determined. 